Ceramic honeycomb catalyst carrier ,for automobile and motorcycle waste gas purification

                 Type

 Performance

Alumina porcelain

Mullite porcelain

Dense cordierite porcelain

Loose cordierite

porcelain

Mullite cordierite porcelain

Stoneware porcelain

Chemical composition

AL₂O₃

48-55

66-72

32-36

32-37

55-65

20-26

SiO₃

40-45

25-30

45-52

46-52

28-36

68-75

MgO

5-8

8-12

2.5-3.2

0.2-0.3

K₂O+Na₂O+CaO

4.0-5.5

≤1.0

≤3.0

≤2.0

≤1.0

2.5-4.0

Density       g/cm³

2.7

2.9

2.4-2.6

1.9-2.0

2.9-3.2

2.3-2.5

Coefficient of thermal expansion

(20-100°C)*10-6·°C

5-7

5.5-6.5

2.5-3.5

1.3-2.5

2.5-4.0

5-7

Calorific capacity(20-1000°C).J/kg·°C

800-900

1100-1300

800-1200

750-900

850-1100

840-920

Thermal conductivity

(20-1000°C)W/m·°C

1.5-2.5

1.5-2.0

1.5-2.58

1.3-1.5

1.5-2.3

1.0-1.2

Thermal shock resistance °C

≥150

≥350

≥250

≥360

≥250

≥150

Max working temperature °C

1300

1600

1300

1300

1400

1300

                             Type  

                                    Item

1

2

3

4

5

6

End hole number

5*5

13*13

20*20

25*25

40*40

50*50

Hole density                    cm^-2

0.15

1

2

3

7

11

Aperture                      mm

26.3

9.2

6.4

4.9

3.0

2.3

Thickness                     mm

2

1.5

1.2

1.0

0.7

0.7

Surface area                  m²/m³

117

278

455

540

825

1005

Opening rate                    %

77

74

73

67

65

57

Size                          mm

Standard: 150*150*600/450/300/150/100/50

Other: 100*100*100/40